Lighting-fixture.



C. BURKHART.

' LIGHTING FIXTURE. APPLiCATlON FILED MAY 24, I915 nted "Dec. 7, 1915.

4 Pat 7 in. Fig. 3 is a plan of the bowl-supporting UNITED s'r'rns PATENT ornate.

FRANK e. BUBKHART, or oMAHa'nE RAsKa LIC TING-FIXTURE.

To all whom it mag/ concern 4 Be it known that I, FRANK C. BURKHABT, a citlzen of the United States, residing in thecity of Omaha, 1n the county ofDouglas r and btate of Nebraska, have lnvented certam new and useful Improvements in Light ing-Fixtures, and have described the same in the following specification, illustrated by the accompanying drawings,

My invention relates to that class of dependent lighting fixtures which are commonly used-in distributing artificial, illumiv a variable number of lamps; to prevent the I 25.

hanger from throwing on the bowl any visible shadow; to suspend the bowl solely by internal engagement-therewith, without the aid'of clamps and without binding stress;

to prevent the hanger from chipping the edge of the bowl to obviate all need of, perforating the'bowl; to support the bowl uniformly andcontinuously all the way around; to avoid cracking the bowl by thermic deformations; to render the bowl removable from the hanger, for cleansing or for substitution, without disturbing the wiring of lamps thereof, a contractile and distensible pertherein; and in general to produce a superior lighting fixture of the specified class. To accomplish-these objects, I incorporate in my mprovedlighting fixture, as parts forated ring for the immediate'support of the bowl, and a plurality of socket finger hooks for the support of the'rings; these hooks being suspended from above and affixed to the ring by adjustment at various distances apart.

In the accompanying drawings, illustrat ing the best manner in which I have content. platedapplying the principles of my invention, Figure 1 is a side elevation of a light-.

'ing fixture which is constructed in accordance with these principles. Fig; 2 is a central vertical section of the same, together with a lamp and lamp wire in position there Specification of Iietters Patent.

ring, togetherwith the socket hooks and a lamp which are carried thereby. Fig. 4 is avertical section on the section line in Fig. 3. In thejllustrated specimenof my invention, the translucent bowl, open at the top, the horizontally disposed ring supporting the bowl, the finger hooks carried bythe ring, the chains suspending the ring by these hooks, the lamps carried by these hooks respectively, and the conductive wires to the lamps, are denoted by the numerals 1 to 6 respectively. The bowl 1 is of any preferred type,"having at the top a contractedmouth formed by the rentrant lips 7. The ring 2 is a thin band of elastic metal, perforatedby numerous boltholes 8, which are uniformly spaced apart and are disposed in a central line from end to end of the band.

By means of a changeable lap joint, uniting the strip wlth itself and comprising the 'screw bolts 9, inserted in the appropriate bolt holes 8, this ring is adjusted in size to fit looselyunder the lips of the bowl which is suspended thereon. hooks 3. comprises the terminal base 10 for immediate attachment to the'ring, the usual screw nipple 11, to engage the lamp socket, and the intermediate connecting strip 12, which is'bent inward from the base so as to avoid contact with the 1ip'7, andhas an arched portion 13 to engage the chain 4:. These hooks, being of such a Variable'numher, and at such a variable distanccapart,

'as may be desired, are adjustedand seaur'ed severally to theinside of the ring by the screw bolts l l inserted through the appropriate bolt holes 8. The chains 4, engaging the arches 13 respectively, are suspended in any usual or convenient manner from an overhead point of attachment which is not shown in the drawings. The lamps 5 are attached to the socket fingers respectively, or to asmany of them as may bedesired, and are connected with a source of current by the wires 6, following the chains 4, all in the usual manner. To avoid each otherthe lamps may be turned aside, as shown in broken lines in Fig. 3, by' flexing the conizectin strips 12 of the socket hooks.

The described hanger is adjustable to different bowls by changes in-the size of the ring, elTected at the lap joints by relocating the bolts 9 in the bolt-holes 8; isa'djustable to be used with any desired number of suspension chains and lamps by removing some, or adding more, of the socket Each of the finger.

Patented'Dec. 7, 1915.

Application filed May24,191 5. Serial No. 30,029. Y

hooks, and spacing the latter uniformly by relocating the bolts ll; is prevented from throwing a visible shadow. on the bowl by the numerous ring perforations 8 and by the narrowness of the contact between the comprising a perforated and lap-jointed ring adapted to support internally .a bowl resting immediately on the top of the ring,

and a plurality of socket fingers fastened to the ring, and adjustable thereon.

2. A lighting fixture of the specified class, comprising a bowl, a rigid band ring of adjustable size engaging the inside of the bowl, and a plurality of socket fingers fastened to the inside of the ring Within the bowl for the support of lamps and as means of suspending the ring. a

3. A lighting fixture of the s comprising a band ring of a ecified class, justable size for the internal support of a bowl suspended thereon, and a plurality of adjustable socket fingers attached to the inside of the ring for the support of lights Within the bowl.

4. A lighting fixture of the specified class, comprising a band ring disposed cylindrically about a vertical axis, and having a plurality of radial perforations for the passage of light, light-supporting means attached to the ring internally, means for suspending the light-supporting means, and a translucent bowl containing the ring and resting thereon lVitness my signature Omaha, Nebraska, May 22d, 1915.

FRANK o. BURKH T.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of intents,

' Washington, D. G. I 

